9e1ec1a529
git-svn-id: http://skia.googlecode.com/svn/trunk@9948 2bbb7eff-a529-9590-31e7-b0007b416f81
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
/*
|
|
* Copyright 2013 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "gm.h"
|
|
|
|
#include "SkImageDecoder.h"
|
|
#include "SkStream.h"
|
|
|
|
class ScaleBitmapGM : public skiagm::GM {
|
|
|
|
public:
|
|
|
|
ScaleBitmapGM(const char filename[], float scale)
|
|
: fFilename(filename), fScale(scale)
|
|
{
|
|
this->setBGColor(0xFFDDDDDD);
|
|
fName.printf("scalebitmap_%s_%f", filename, scale);
|
|
|
|
SkString path(skiagm::GM::gResourcePath);
|
|
path.append("/");
|
|
path.append(fFilename);
|
|
|
|
SkImageDecoder *codec = NULL;
|
|
SkFILEStream stream(path.c_str());
|
|
if (stream.isValid()) {
|
|
codec = SkImageDecoder::Factory(&stream);
|
|
}
|
|
if (codec) {
|
|
stream.rewind();
|
|
codec->decode(&stream, &fBM, SkBitmap::kARGB_8888_Config,
|
|
SkImageDecoder::kDecodePixels_Mode);
|
|
SkDELETE(codec);
|
|
} else {
|
|
fBM.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
|
|
fBM.allocPixels();
|
|
*(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad
|
|
}
|
|
fSize = fBM.height();
|
|
}
|
|
|
|
protected:
|
|
|
|
|
|
SkBitmap fBM;
|
|
SkString fName;
|
|
SkString fFilename;
|
|
int fSize;
|
|
float fScale;
|
|
|
|
|
|
virtual SkString onShortName() SK_OVERRIDE {
|
|
return fName;
|
|
}
|
|
|
|
virtual SkISize onISize() SK_OVERRIDE {
|
|
return SkISize::Make(fBM.width() * fScale, fBM.height() * fScale);
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
|
|
SkBitmap dst;
|
|
dst.setConfig(SkBitmap::kARGB_8888_Config, fBM.width() * fScale, fBM.height() * fScale);
|
|
dst.allocPixels();
|
|
fBM.scale(&dst);
|
|
|
|
canvas->drawBitmap(dst, 0, 0);
|
|
}
|
|
|
|
private:
|
|
typedef skiagm::GM INHERITED;
|
|
};
|
|
|
|
class ScaleBitmapMipmapGM: public ScaleBitmapGM {
|
|
SkMatrix fMatrix;
|
|
|
|
public:
|
|
ScaleBitmapMipmapGM(const char filename[], float scale)
|
|
: INHERITED(filename, scale)
|
|
{
|
|
fName.printf("scalebitmap_mipmap_%s_%f", filename, scale);
|
|
fBM.buildMipMap();
|
|
fMatrix.setScale(scale, scale);
|
|
}
|
|
protected:
|
|
virtual void onDraw(SkCanvas *canvas) SK_OVERRIDE {
|
|
SkPaint paint;
|
|
|
|
paint.setFilterBitmap(true);
|
|
canvas->drawBitmapMatrix(fBM, fMatrix, &paint);
|
|
}
|
|
private:
|
|
typedef ScaleBitmapGM INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM( return new ScaleBitmapGM("mandrill_128.png", 2); )
|
|
DEF_GM( return new ScaleBitmapGM("mandrill_64.png", 4); )
|
|
DEF_GM( return new ScaleBitmapGM("mandrill_32.png", 8); )
|
|
DEF_GM( return new ScaleBitmapGM("mandrill_16.png", 16); )
|
|
|
|
DEF_GM( return new ScaleBitmapGM("nature.jpg", 0.5f); )
|
|
DEF_GM( return new ScaleBitmapGM("nature.jpg", 0.25f); )
|
|
DEF_GM( return new ScaleBitmapGM("nature.jpg", 0.125f); )
|
|
DEF_GM( return new ScaleBitmapGM("nature.jpg", 0.0625f); )
|
|
|
|
DEF_GM( return new ScaleBitmapMipmapGM("nature.jpg", 0.5f); )
|
|
DEF_GM( return new ScaleBitmapMipmapGM("nature.jpg", 0.25f); )
|
|
DEF_GM( return new ScaleBitmapMipmapGM("nature.jpg", 0.125f); )
|
|
DEF_GM( return new ScaleBitmapMipmapGM("nature.jpg", 0.0625f); )
|